Image Optimization - Giordan on Graphics | 3

Step 4-
Adjust Color With Curves

Finish off the tonal adjustments by correcting the color balance with the
Curves command. In this case, I wanted to remove that greenish cast from
the image.

Select Image>Adjust>Curves and click on the Channel pop-up menu and
select the green channel. Click in the middle of the slope and drag down
to lower the curve slightly. I also selected the Blue channel and lowered
the blue curve, adding a bit of yellow to the image.

The result is shown at the left. Compare it with the original
image to see how far we've come...